:root {
  color-scheme: light dark;
  --bg: #fff8f0;
  --fg: #4a3f35;
  --accent: #ff9fb2;
  --accent-strong: #e8607d;
  --card-bg: #ffffff;
  --border: #f0ddd0;
  --owned: #7fc9a0;
  --not-owned: #d8cfc8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Hiragino Maru Gothic ProN", "Yu Gothic", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--fg);
  padding-bottom: 2rem;
}

.app-header {
  padding: 1.25rem 1rem 0.75rem;
  text-align: center;
}

.app-header h1 {
  font-size: 1.15rem;
  margin: 0;
}

.app-subtitle {
  font-size: 0.8rem;
  color: var(--accent-strong);
  margin: 0.35rem 0 0;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 0.75rem;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  padding: 0.75rem;
  background: var(--card-bg);
  border-radius: 12px;
  border: 1px solid var(--border);
  margin-bottom: 1rem;
  position: sticky;
  top: 0.5rem;
  z-index: 10;
}

.filter-field {
  display: flex;
  flex-direction: column;
  font-size: 0.8rem;
  gap: 0.25rem;
}

.filter-field select {
  font-size: 0.95rem;
  padding: 0.4rem 0.5rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--fg);
}

.filter-summary {
  margin-left: auto;
  font-size: 0.85rem;
  opacity: 0.75;
}

.toggle-group {
  display: flex;
  gap: 0.3rem;
}

.toggle-btn {
  font-family: inherit;
  font-size: 0.8rem;
  padding: 0.35rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--fg);
  cursor: pointer;
}

.toggle-btn.is-active {
  background: var(--accent);
  border-color: var(--accent-strong);
  color: #fff;
}

.item-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

@media (min-width: 480px) {
  .item-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 0.75rem;
  }
}

.item-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
}

.item-card.is-owned { border: 2px solid var(--owned); }

.item-thumb {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: var(--border);
  display: block;
}

.item-thumb-placeholder {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--fg);
  opacity: 0.6;
}

.item-body {
  padding: 0.5rem 0.6rem 0.65rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.item-name {
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1.3;
}

.item-tags {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  font-size: 0.7rem;
}

.tag {
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  background: var(--bg);
  border: 1px solid var(--border);
}

.owned-badge {
  position: absolute;
  top: 0.4rem;
  right: 0.4rem;
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  color: #fff;
  background: var(--not-owned);
}

.owned-badge.is-owned { background: var(--owned); }

.empty-message {
  text-align: center;
  opacity: 0.7;
  padding: 2rem 0;
}